Home Chapter 1 Multiple Choice

# Multiple Choice

This activity contains 14 questions.

## The unit for frequency is the

 hertz ampere watt second

## Scientific notation is a method

 of expressing a very large number of expressing a very small number used to make calculations with large and small numbers All of the above

## The number 14.8 can also be expressed as

 1.48 × 10–1 1.48 × 100 1.48 × 101 1.48 × 102

## Adding 27.5 × 103 to 8.9 × 104 equals

 36.4 × 107 116.5 × 104 28.39 × 103 11.65 × 104

## Dividing 24 × 1011 by 3 × 104 equals

 8 × 104 8 × 107 8 × 1011 8 × 1015

## Which of the following is expressed in engineering notation?

 470 × 105 82 × 10-2 9.1 × 10–6 14.7 × 108

## Which of the following metric prefixes could replace 10–9?

 Nano Mega Kilo Micro

## 7200 mV is the same as

 7.2 V 7.2 V 7,200,000 V 0.0072 V

## The difference between scientific and engineering notation is

 powers of ten representation single vs. multiple digits before decimal point groupings of multiples of three digits All of the above

## Pico is what relation to micro?

 one-tenth one-hundredth one-thousandth one-millionth

## Add 21 mA and 8000 A and express the result in milliamperes.

 21.8 mA 218 mA 29 mA 290 mA

## A measure of the repeatability of a measurement of some quantity is

 error precision accuracy significant

## The digits in a measured number that are known to be correct are called

 accuracy digits significant digits error digits precision digits

## If you drop a 5 when rounding a number, you are using the

 round-to-even rule significant digit rule round-off rule retained digit rule